London's theory. Assume that we are discussing a long cylinder with a radius (R) much larger than the London penetration
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London's theory. Assume that we are discussing a long cylinder with a radius (R) much larger than the London penetration
London's theory. Assume that we are discussing a long cylinder with a radius (R) much larger than the London penetration depth (\L). Start with London's theory and what is predicts for the magnetic field. Use Maxwell's equations to obtain the current density. Assume that there is a critical magnetic field and obtain the critical current from that. [6 marks]
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